<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        * {
            margin: 0;
            padding: 0;
        }
        ul {
            /* 开启父容器ul的弹性盒子布局 */
            display: flex;

            width: 700px;

            height: 120px;

            justify-content: space-between;

            border: 2px solid orange;

            /* align-items用于控制项目在交叉轴上的排列方式 */
            /* align-items: flex-end; */
            /* stretch 拉伸 子项目不能有高度 */
            align-items: baseline;
        }


        
        li {
            list-style: none;
            width: 100px;
            height: 50px;
            border: 1px solid darkblue;
            background-color: lightblue;
        }

        li:nth-child(3) {
            font-size: 40px;
            padding: 20px;
        }
    </style>
</head>
<body>
    <ul>
        <li>1</li>
        <li>2</li>
        <li>3</li>
        <li>4</li>
        <li>5</li>
    </ul>
   
</body>
</html>